Banding tool



G. L. McKEE SANDING TOOL Oct. 10, 1939.

Filed July 23, 1937 2 Sheets-Sheet 1 mm r ATTORNEY.

' a recessed portion l2 by means of a. peripheral Patented Oct. 10, 1939PATENT orncs BANDING 'roon Glenn L. McKee, Bakersfield, CaliL, assignorto McKee Brothers Calif.

Corporation, Bakersfield,

Application July 23, 1937, Serial No.'155,156

' 9 Claims. -(Cl. 81-9.3)

My invention relates to a banding tool, and more particularly to a toolfor tightening a metal band around an article, e. g., a round articlesuch as a hose, a telephone pole, etc., or a rectangular article, suchas a box, a railroad tie, etc.

' An important object of the present invention .is to provide such atool that may beheld in the operators hand during the banding operation.

Another object is to provide in such a tool means forv cutting offsurplus from the end of the band, after the band has-been applied to andtightened around the article desired to be banded. The invention alsocomprises novel details of construction and novel combinations andarrangements of parts, which will more fully appear in the course of thefollowing description.

In the drawings, likereference characters designate similar parts in theseveral views.

Figure 1 is a face view of an embodiment of my 7 invention.

Figure 2 is a vertical section with certain parts removed, and showingthe handles in a different operative position.

Figure 3 is a broken face view, looking in the opposite direction.

Figure 4 is an enlarged view, partly in cross section, taken on the line4-4 of Figure 5.

Figure 5 is also an enlarged' view, partly in 'section and partly brokenaway, looking in the direction of the arrow A of Figure 4;

Figure 6 is an'enlar'ged section taken on the line 6-6 of Figure 1.

Figure 7 is a broken, perspective view of a hand lever comprised in theinvention and its associated parts.

Figure 8 of Figure 5. I

Referring more in detail to the drawings, the

reference numeral 9 designates a handle for the tool mounted on a headII) that is provided with flange l3. A face plate I4 is bolted .on theflange I3, thereby providing a housingfor mechanism I disposed in therecess I2.

A rotary ratchet wheel I5 is mounted on a spindle l6 and provided with asplit end A sleeve bearing l8 rotatably mounts one end of the spindle M5in the head "I and a sleeve hearing I! rotatably mounts the other end ofthe spindle IS in the face plate ll.

Pivoted on a pin inthe recess l2 ofthe head I]! is another handle 2|. Ablock 22 is also pivoted on the pin 20 and in turn supports a dog 23 bymeans of a floating pivot pin 24. The block 22 has a laterally bent lug25 thatis engaged by is a section taken on the line 88 the relativelymovable handle 2| moved in one direction (counter-clockwise, as shown inFigure '7).

' The dog 23* comprises a tooth 26 for engaging the ratchet wheel l5,and also carries 9. lug 21, 5 apertured at 28, for receiving a bolt 29that is provided with threaded ends. An adjusting nut 30 is screwed onone threaded end of the bolt 29, and the other threaded end is screwedinto a rotary abutment 3 I. A helical spring 32 is wound 10 around thebolt 29 and abuts the lug 21 and the abutment 3|. Said spring rocks thedog 23 about the pivot pin 24. Pressure of the spring 32 against the lug21 thereby urges the tooth'26 of the pivoted dog 23 into engagement withopposed 15 teeth of the ratchet wheel. The nut 30 engages a shoulder 33of the fiange'I3. The shoulder 33 inclines upwardly (in Figs. 1 and 2)'at an angle to a tangent of the arc of movement of the nut 30. Thus, byadjustment of the nut 30, it en- 20 gages a difierent point on theincline of said shoulder, which determines the amount that the ratchelwheel is rotated during one cycle of movement of the pivoted handle 2|.It is to be understood that when the nut has been screwed up the bolt23, so that the shoulder 33 is not touched by the nut 3|], in the cycleof operation, the longest stroke of the dog 23 is obtained. In thisevent, the bolt 29 itself engages the shoulder 33, .to limit the dog 23;Thus by changing the 30 position of the nut on the bolt 29, the amountof rotation of the ratchet wheel during one cycle of operation of thepivoted handle is varied.

Means to prevent retrograde movement of the ratchet wheel while the dog23 is being moved to 35 engage other teeth of the ratchet-comprises apawl 34. The pawl is mounted on a pin 35 that is journaled in the headI!) and plate M, as shown in Figure 8. The pin 35 has its endsprojecting beyond said head and plates A crank arm 36 is keyed on oneprojecting end of the pin35. The other projecting end is slit, as shownat 31, to receive a flat spring 38. This spring tends'to move the pawl34 into engage- I ment with the ratchet wheel. The crank arm 36 has aspring latch 39, which in one position (shown in Figure 8) engages asocket II in' the plate I4. When the latch 39 is in the socket 4|, theratchet I5 is locked against successive rotation. When the latch 394swithdrawn manually from the socket ll and the crank arm 35 is moved tothe position shown in Figure l, the ratchet l5 may be rotated insuccessive'stages, to tighten a band around an article.

and lower blocks 42 and 43. A groove 44 is provided between the blocks.The groove 44 is preferably entirely in the upper block 42,althoughcomplementary portions of the groove may be in the two blocks.

A shearing bolt 45 is rotatably mounted in complementary halves of acylindrical opening between the blocks 42 and 43. The bolt 45 istransverse to the groove 44. That portion of the bolt 45 that extendsacross the groove 44 is half cut away, towit, that half that is normallyin the upper block 42. Screws 46 fasten the blocks 42 and 43 together.

On what is normally the rear face of the tool, a lever 41 is fastened onthe shearing bolt 45. A fiat spring 48 is disposed in a split end 49 ofthe bolt and is hooked into the head I0, as shown at 50. The spring 48urges the free end of the lever 4'lagaiinst the side of the head I0.When the lever 41 is against the side of the head III, the groove 44between the blocks is unobstructed' In the use of my tool, a band 60such as shown and described in my co-pending application for patent,Serial No. 125,650, filed February 13, 1937, is applied to a hose 6|. Acoupling 62 laps the joint between hose sections. Reference is made tosaid application and also to my co-pending application Serial No.79,545, filed May 13, 1936, now issued as Patent No. 2,150,234, datedMar. 14, 1939, for subject matter shown and described but not claimedherein.

The present tool is a portable hand tool for tightening such a bandaround the hose or other article, as suggested at the outset cation.

A clip 63 embraces wraps of the band, 60. One end 04 of the band is bentaround an end of the clip 63, to prevent such end from slipping throughthe clip. The other end 65 of the band is inserted lengthwise of thegroove 44, across the flat side of the shearing pin 45 and into thesplit of the end IT. A nose 66 formed by beveled front faces oftheblocks 42 and 43 contacts the clip 83 to restrict its movement. Theposition of the clip 63 spaced from the nose 66, as shown in Figures 4and 5, is prior to the tightening of the band 60 aroundan article.

The ratchet I is now rotated in the. direction of the arrows shown inFigure 2, by moving the of this specifihand1e2| toward the handle 9 bysuccessive movements. The handles are gripped as suggested by the brokenlines in Figures 1 and 2, illustrating the user's hands.

Said movement of the pivoted handle 2| efiects movement of the block 22by contact with the lug 25. Tooth 26 of the dog 23 successively engagesteeth around the ratchet wheel to advance the latter by successivemovements of the dog. The spring 32 urges the dog tooth into engagementwith the ratchet and the number of teeth that the ratchet wheel isadvanced upon each movement of the dog is determined by the posi- .tionof the nut 30, which thereby can be varied to engage different points onthe incline'of the shoulder 33, or to permit the bolt 29 to engage theincline.

--A fter the band 50 has been sufliciently tightened around an article,theband is looked upon the clip 63, to maintain the compression ortension upon the article, in the following manner: The banded article ismoved from the position shown in Figure 1 to the position shown inFigure 3. This movement bends the end 65 of the band around the end ofthe clip 63. To permit such movement of the banded article, the toolDuring this movement, the spring latch 39 is in the recess 4| and thehandle 2| is moving away from the handle 9. Thus the tension orcompression is maintained on the article as the band is looked aroundthe clip.

The banded article may then be bent upward, as shownin Figure 3, so asto bend the band end 65 substantially parallel with the end 64, to lockthe band in its tightened position around the article.

The band end 65 is then sheared by moving the handle 2| further awayfrom the handle 9, as suggested by the arrow adjacent the handle 2| inFigure 3. The lever 41 thereby rotats'the shearing pin 45 in thedirection of the arrow adjacent such lever in the same figure and in thedirection of the arrow adjacent said pin in Figure 5. This movementcauses the pin 45 to shear the band against the edge of thecomplementary groove in the upper block 42.

The remaining portion of the end 65 is then bent down on the clip 63 andthe end is bent down upon the first-mentioned end in the manner shownand described in my said co-pending applications.

It will be noted in Figure 5 that the upper bloclr 42 has a slot 61 thatpermits play of the band end 65 in the upper block. The broken line Hi5suggests an extreme position of the band 65 during the rotation of theratchet.

Moreover, the opening in the lug 2'! is larger than the pin 29, topermitrocking of the one relative to the other.

While I have illustrated and described what I now regard as thepreferred embodiment of my invention, the construction is, of course,subject to modifications without departing from the spirit of myinvention. I, therefore,do not wish to restrict myself to the particularform of construction illustrated and described, but desire to availmyself of all modifications which may fall within the scope of theappended claims.

Having thus described my invention, what I claim and desire to secure byletters Patent is:

1. A banding tool comprising relatively movable handles, mechanism onthe tool to draw a band tight around an article, a shearing blockfastened on the tool, a shearing pin rotatable in the block, means onthepin to turn the pin, one of the handles being arranged for relativemovement in opposite directions, said handle being arranged to actuatesaid means by movement in one direction and being operatively connectedwith said mechanism upon movement in the opposite direction.

2. A banding tool comprising relatively movable handles, mechanism onthe tool to draw a band tight around an article, a shearing blockfastened on the tool, a. shearing pin rotatable in the block, a lever onthe pin, a spring tending to move the lever to a position in which thepin is in a non-shearing position, one of the handles of the tool beingarranged for relative movement in opposite directions, said handle beingarrangedto engage and move the lever against the action of said springby movement in one direction, to rotate the pin to a shearing position,and said handle being operatively connected with said mechanism uponmovement in the opposite direction. I

3. A banding tool comprising relatively movable handles, a'movableratchet on one of the handles, a pivoted dog arranged to be actuated bythe other handle to transmit motion to the ratchet by relative movementof the handles, a spring, a pivoted arm arranged to stiffen the spring,the spring being connected to move the dog piv'otally into engagementwith the ratchet, means limiting the pivotal movement of the arm, andthereby limiting the motion transmitted by the dog to the ratchet, andmeans connected with the ratchet for winding up a band, by movement ofthe ratchet, to tighten the band about an article.

handles, a ratchet on one of the handles, a pivoted dog arranged to beactuated by the other handle and to move the ratchet by relativemovement of the handles, a bolt on the dog, a nut on the bolt arrangedto strike a portion of one of the handles to limit pivotal movement ofthe dog and by the dog to the ratchet, and means connected with theratchet for winding up a band by movement of the ratchet, to tighten theband about an article.

5. A banding tool comprising relatively movable handles, a ratchet onone of the handles, a rocker dog arranged when actuated to advance theratchet, a block pivoted with respect to the handles, the dog beingpivoted on the block to actuate the dog by relative movement of thehandles, and means connected with the ratchet for winding up a band totighten same about an article.

6. A banding tool comprising handles relatively movable .about a pivot,a ratchet on one of the handles, a rocker dog arranged when actuated toadvance the ratchet, a pivoted block providing a floating pivot for thedog and disposed inthe path of one of the handles, to actuate the dog byrelative movement of the handles, and means connected with the ratchetfor winding up a band to tighten same about an article.

7. A banding tool comprising handles relatively movable about a pivot, arotary ratchet on one 4. A banding tool comprising relatively movablethereby limit the motion transmitted of the handles, a pivoted dogarranged to be actuated by the other handle to transmit rotary movementto the ratchet by relative movement of the handles, means connected withthe ratchet for winding up a band to tighten same about an article, thetool having a shearing edge, a shearing. pin mounted adjacent theshearing edge to turn on an axis between the axis of the ratchet and thearticle being banded, the pin having means to turn it, one of saidhandles being arranged to actuate said means to turn the shearing pinrelative to the shearing edge, to efiect a shearing action.

8. A banding tool comprising a handle, a ratchet and a block pivoted onthe handle, a rocker dog pivoted on the block and arranged when actuatedby the block to advance the ratchet, a second handle pivoted on handleand arranged to contact the block, spring means urging the dog intoengagement with the ratchet, means connected with the ratchet forwinding up a band to tighten same about an article, and shearing meansfor the band, the second handle being movable separately from theratchet, block and dog on the other handle and arranged to engage andactuate the shearing means when so separately moved.

9. A banding tool comprising relatively movable handles, mechanism onthe tool to draw a band tight around an article, a shearing blockfastened on the tool, the block having a slot therethrough for the band,a rotary shearing pin in the block transversely of the slot, the pinhaving a portion removed to provide a free passage lengthwise of theslot, in one position of the pin, and to afford a shearing movement ofthe pin when same is rotated, one of the handles being arranged toactuate the shearing'pin, and means connected to the pin to turn sameand disposed to be actuated by the latter handle.

GLENN L. MCKEE.

the first-mentioned

